Machine for treating hides, skins, leather, and other like pieces of material



Oct. 9, 1928.

' G. A. SCHETTLER MACHINE FOR TREATING HIDES, SKINS, LEATHER,

Filed Sept. 8, 1926 AND OTHER LIKE PIECES OF MATERIAL INVENTORpresenting band and the Work support- Pat nted Get. 9, 1928. I

PATENT OFFICE.

.' UNITED STATES ousrav A; scninrrnnnor Lnnns, ENGLAND, ASSIGNoRZTO THETURNERTANNING IIIACEINER-Y COMPANY, OF PGRTLA ND, MAINE, A CORPORATIONOF MAINE.J-

OTHERIIKE PIECES on Application filed September 8,1826, Serial no. 134,1910, and in Great Britain September 29, 1925.

This invention relates to machines for treating hides skins, leather,and other like pieces of material, and 1s illustrated as cmbodied in a.butting machine especially adapted for builing operations upon rela-.

tively large and heavy pieces of leather. It is to be understood,hovceventhat various features of the invention are not limited in theirap ilication to machines of the class illus trated but may have otherapplications'and Obiectsof the invention are to facilitate the d n. Lfeedmg or leather pieces to a Work treating "tool, to minimise the laborof the operator in his efforts to secure uniform treatment by thetreating tool, and to provide machine of the for presenting pieces ofwork succes-' sively to a Work treating tool, suchmeans ng a orksupporting table having erein in which a member moves boden workreceiving and WOllZPI'QSBIlD- ily beta" work and presenting them to theWork treat tool. [is il ustrated, the bodily movable r comprises anendless \vorl: presentit arranged to be positively driven'at .rm speed 1to itCfi HllCG all portions of tl oivorl: at the same rate'past thetreating While in contact therewith. Byreason of the relative movementoetiveen the Work ing table, there is a cistinct "tendenc stretch "heniece of WOIK due to the frictional essive portions ofth' Work as theooves along the slotin the table yd the-Work treating tool. The l; isdisposed in extended r 'nlzles or folds effaced dragon suc itself to;Work pieces of various grades of 3 thickness and to Work pieces whichvary 1n the appended claims.

' posit-ions for supporting" portions ofthe the surfaceof th work '2'n'iovement or,

the thickness of different portions of each piece. As exemplified in theillustrated construotion, the yieldingly surfaced member for backingthe'band is constructed of felt disks,

compacted side'by side into a roller which presents a broad supportingsurface for the endless'band. I v

These andother featuresof theinvention will bejd'escribed in detail andpointed out in In thedraWing:- p

,Figure'l is aside elevation'partly broken away illustrating'oneembodiment of the in vention w Fig. 2 is a plan of the machine shown in"Fig. l, a'W(ark-supportingtablebei'ng omitted the better to show theparts beneath; and

Fi 3 is a View in 361's ectiveof the Work :3 supporting and presentingmeans.

In the machine illust'ated, a; positively V l driven Work supportingelement comprising an endless band l of the desiredlength andmaterialpasses round a oarrier roller 2 and rounda smaller roller 3. Thecarrier'roller 2 is rotatably mounted in a saddle or frame l andthe'smaller roller is carried by eyebolts 5 which are passed througharms 6 attached to the saddle or frame, said eyebolts being adusted totension the band by Wing nuts 7 or equivalent means. By means of a boltor screw 8 thesaddle or yoked 1s fixed upon a frame 9 adapted to rock ona fulcrum formed by screws 10 in the main frame 11 of the machine to,carry the Work supporting band 1, and With it the work, towards and froma bufiing roller or element 12. T iis latter is rotatablymounted in themain frame 1 and driventrom a main shaft 13 by means of belts 1e andpulleys 15 9.115116. Fast on shaft 17 of the carrier roller 2. is asprocket Wheel 18 drivenby a chain 19 from asprocket wheel 20 fast on ashaft 21 rotatably mounted in the main frame below the fulcrum screws 10of the frame 9. The shaft'2l 1s so mounted in relation to'the saidfulcrum that the rocking 100 the frame 9 has substantially no effect onthe-operation ofthe drivin'g'parts 18, 19 and 20. On the same shaft :21isa pulley driven by abelt 23 from are duction gear inechanismcomprising a pulley 24 and gear ori'a shaft26 suitably carried' inthe'main frame,and driven from a transverse shaft 27," also mounted in themachine frame, by a pinwe 2 w h me hes Wit re g a 2 T e transverse shaft27 is driven by a belt 29 and pulleys 30 and 31 from the main shaft 13.By means of the two belt drives and associated gearing the speed of thework supporting band 1 is reduced to a convenient one for feeding thework.

A clutch (not shown) is provided to enable the driving pulley 22 to beput into and out of operative connection with the shaft 21 in order toleavethe band 1 stationary or to drive the same at the will of theoperator. The main shaft is equipped with fast and loose pulleys 32 and33 which may be driven from any suitable source of power.

A treadle 34 is mounted on a fulcrum 35 in the machine frame andprovided with a counterweight 36 and with an extension 37 for engagementwith an adjusting screw 38 threaded through the lower endof the frame 9and fitted with a lock nut 39. Then the treadle is depressed the worksupporting element comprlsing the band 1 1S moved from the non-workingposition shown in Fig.

1 to working position with the work pressed against thev buffing roll12. Upon release of the treadle the frame moves outwards under theweight of the parts supported thereby, thus moving the band 1 to workreceiving 'maintained, in addition to which renewal costs are reducedsince it is much less expensive to renew the endless band than it is torenew the resilient felt discs of the roller.

In the illustrated machine a table is provided for the purpose ofsupporting large pieces of leather or other work while portions thereofare undergoing buffing operations. Preferably, and as shown, the table50 is stationary, being supported by posts 52 rigidly secured to theframe 11 of the machine. In order that the work supporting band 1 mayoperate as above described, the table 50 is provided with a slot 54 of asize to accommodate the upper run of the endless band and in addition topermit bodily movementof the band along and through the slot in movingbetween work receiving and work presentin positions. When a piece ofwork supported on the table 50 is in position preparatory to a buflingoperation, it extends I over the surface of the table'to substantial:di-stances on each side of the slot therein,

with portions of the work hanging down between the operator and thetable. The work supporting band initially in retracted work receivingposition, moves toward the buffing roll 12 upon starting the machine. Inthis movement, through frictional contact with the work, the bodilymoving and travelling band 1 operates to putsuccessiv'e portions of thepiece of work under tension sufficient to cause these portions, inposition for imassociated therewith. are in retracted work receivingposition, as indicated in Fig. 1.

It is to be understood that when the machine is ready for operation,both the bufling roll 12 and the work presenting band 1 are beingpositively driven through the power means provided for that purpose, the.band 1 being driven from the mainshaft through connections comprisingthe chain 19. Hence, when the operator steps upon the treadleZA, thuscausing the yoke 4. to turn about its pivot crews 10, the power drivenband 1 moves directly toward the bufiing roll 12 carrying a portion ofthe work into contact with the buffing roll. Since the bufling roll 12and the band 1 are moving in directions to cause feeding of the workin-a direction downwardly and inwardly while the buffing of the surfaceof the leather takes place, it follows that the band 1 must be permittedto return to or toward initial work-receiving position in order topermit the work to be shifted laterally to bring an untreated portionthereof into the path of the rotating buffing roll. Each time that thetravelling band 1 is moved bodily toward the bufling roll 12, it placesportions of the work to be operated upon under tension, thusconditioning it in a manner favorable to uniform operation by thebuffing roll. It will be noted, further- .more, that, because of thefeeding movement of the band 1 which is driven at a uniform rate ofspeed, ,the workwill have all of its. portions presented at the samerate to the buffing roll, and this, again, is a feature in securinguniformity ofloperation by the buffing roll. This feeding of the work bythe band 1 serves to relieve the operator of the laborious effortsheretofore necessary in I manipulating the work and in controlling thefeed thereof to secure unlform results in buffing operations.

Having described my'invention, what I claim as new and desire to secureby Letters Patent of the United States is v 1. In a machine for treatingleather and other like piecesof work, a rotary tool, means forpresenting the work to the t Ql compris and the endless band to mg anendless-band, a member for backing the band along the line of thrust ofthe tool on the work, means comprising driving meansfor said memberarranged positively to drive the band for feeding the work at a uniformrate past the tool, and means for causing,

relative bodily movement between the tool permit the work to beintroduced therebetween,

, said member positively to drive the band for feeding the workpast thetool, andmeans for causing bodily movement of the endless band away fromthe tool to permit the work to beintroduced therebetween.

3. In a machine for treating hides and skins and other like pieces ofwork, a work treating tool, a work support for presenting the work tothe tool comprising an endless band for supporting the work, and rollersfor supporting the band and keepingit under tension, one of said rollersbeing operative alsofto back the band along the line of the thrust ofthe too-l against thework, said last-mentioned roller having a readilyyieldable surface for yieldingly supporting the band. I

4. In a machine for treating leather and other like pieces of work, arotary worktreating tool, a work support for presenting the work to thetool comprising an endless felt band, and a roller operative to back thehand along the line of the thrust of the tool against the work, saidroller being composed of disks of felt compacted side by side to providea yieldable surface for yieldingly supporting the band. i v

5. In a machine for treating hides and skins and other like piecesof-work, a worktreating tool, a work support for presenting the work tothe tool comprising-an endless band, and rollers for supporting the bandand keeping it under tension,one' of said rollers being operative alsoto back the band along the line of the thrust of the tool against thework, said last-mentioned roller being composed of disks of feltcompacted side by side and providing a yielding surface to back theband. r

6. In a machine for treating leather and otherlike pieces of work, arotary worktreating tool, a work support for presenting, the work tothetool COIIIPIlSlIl'g a travelling.

band and a plurality of rollers for supportoneof said rollers'beingoperative also to back the band alongthe line of'the thrust of the toolagainst the work, said last-mentioned roller being composed of disks offelt compacted. side by side and providing a yield? ing the band andkeeping it under tension, I

rate past the buffing roll. p

8 In a. bufiing machine, a bufiing roll a work-supporting means forpresenting the work to the bufling roll comprising an endless band uponwhich apiece of work is sup-' ported, rollers for supporting the bandand for keeping it under proper tension, means for driving one of therollers to cause travel of the band at a predeterminedrate to feed thework past the butting ro'll,-the driven roller serving also to back theband along the line of pressure of the bufling roll, and means forcausing relative bodily movement between the bufling roll andthe'end'less band to permit the work to be introduced therebe tween. 3

9. In a buffing machine, a buffing roll, a

table having a slot and adapted to support a piece of work, a membermovable along and through t-he slot in the table for extending portionsof the work and carrying the work into contact with the buffing roll,said member being bodily movable between work receiving and workpresenting positions, and

ingsurface to back the band along the line of thrust of the tool.

' cause the band to feed the work at a uniform (in V means'for drivingthememb'er to feed the I work past the buffing roll.

,10. In a buffing machine, a bufling roll, a 7

table for supporting apiece of work, a member movable along a slot inthe table for sup- I porting portions of the work and presenting them tothe buffing roll, saidvmember being bodily movable between workreceiving and work presenting positions, and means formoving the memberto work presenting position. 7 v" 11. In a butting machine, abuttingroll, a table havinga slot and adapted to support a piece of work, amember movable along and through the slotin the table for supportingportions of the. work "and presenting them'in extended condition to'thebuffing roll, said member being bodily movable between work receivingand work presenting positions, means for driving the member to feed thework past the buffing roll and a manually presenting position.

for feeding portions of the work into contact with the butting roll,said band being-bodily m vable slang the said sla bet een r "operablelever for moving the member to work ceiving and-work presentingpositions, and means for driving the band positively to feed the Work ata uniform rate past the buffing roll.

1'3. In a buffing machine having a frame for supporting machine parts, abuffing roll, meansfor rotating the roll, a Work-support ing membermovable between Work receiving and Work presenting positions Withrespect to the buffing roll, a yoke for pivotally supporting the member,power means comprising an end-lesschain for causing positive feedingmovement of the member, and a shaft journal'ed in the frame and having asprocket Wheel-for driving the chain, said yoke having a pivot locatedabove said shaft in such relation thereto that driving of the chain isnot affected by movement of'the yoke.

14. In a bu-fiing machine, a bufiing roll, means for rotating the roll,a Work-supporting' endless band movable between work receiving and Workpresenting positions'with respect to the butting roll,rollers forsupporting theba-nd and for keeping it under proper tension, a yoke forpivotally supporting the band and rollers, power means comprising anendless chain for driving one of the rollers thus causing feedingmovement of the endless band, and a shaft stationary in the frame andhavinga sprocket Wheel for driving the chain, said yoke having. a pivotlocated above said shaft in such relation thereto that driving of thechain is not affected by movement of the yoke. a

15. In a bufiing machine, a rotary buffing roll, an endless band forsupporting the Work and presenting it to the bufiing roll, a pair'ofrollers for supporting the band and for maintainin-g it under propertension, a yoke for supporting the band and rollers, said yoke beingpivoted for movement With respect to the bufiin g roll, means fordriving the band at a predetermined rate of speed, and means for movingthe yoke to effect the W011i receiving and Work presenting movements ofthe band.

16. In a bufling machine, a rotarybn'liing roll, an endless band forsupporting the Work and presenting it to the buffing roll, apair ofrollers for supporting the band and for maintainingit under propertension, a yoke for supporting the band and rollers, said yoke being vpivoted to the frame of the machine'to permit movement of the yoke Whereby the band may be moved between Work receiving and Work presentingpositions, means for drlvlng the band positively at a predeten' minedrate of speed, and amember under the control ofthe operator for moving:the yoke to effect the Work receiving and W'Olli presenting movementsofthe band.

17;. In a machine for treating leather and other similar pieces of Work,a rotary Work treating tool, a member for su aporting, portions of apiece of Work and presenting them to the tool, means for causing feedingmovement of the member, a table for supporting the Work and having aslot therein in Which the member operates and along Which'it is bodilymovable l'ietween Work receiving and Work presenting positions, andmeans for effecting the described bodily movementsof 110 Work supportingand presenting memportions of piece of Work and presenting them to thetool, rollers for supporting the treating tool, a table for supporting apiece of Work and having a slotted portion, a memher for supportingaportion of the pieceof Work and presenting it to the action of the tool,and means for moving the member along the slot in the tableinatdirection toivardthe tool to extend the portion of the Work to beimmediatelyv operated upon thereby effacing any folds or Wrinklesthereinwhereby allportions of thesurfaceof the Work are uni formlypresented to the operation of the tool. 20. In a maehlne for treatingleather and other similar pieces of Work, a rotary Work treatingtoohatable fol-supporting a piece of Work and having a slotted portion, amemher for supporting a portion of the piece of Work and presenting itto the action of the tool, povver means for causing feedingmovement ofthe member, and means for moving the member along the slot in the tablebetween Work receiving and Work presenting positions With respect to thetreating tool, the arrangement being such that movement of the powerdrlven feeding member bodily toward the treating tool causes the 'Workto be stretched out forthe operation of the tool in such a Way thatfolds and Wrinkles therein areeffaced before the tool begins to operate.

name to this specification.

L GUSTAV ADOLF In testimonv whereof I have signed my 18. In amachine fortreating leatherand other similar pleces of Work, a rotary Work treatingtool, an endless band for supporting

